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(No Model.) 2 Sheets-Sheet 1.

RI A. CARTER. PLANGIRG MACHINE.

No. 306,466. Patented ont. 14, 1884.'

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FLANGINGMAGHINE. No. 606,466. y Patented 066.114, 1664.

HNIIIHHIHIFN fffww Unirse @raras Partnr @niet"ent ROBERT A. CARTER, OFPITTSBURG, PENNSYLVANIA.

FLANGING= MACHHNE.

SPECIFICATION forming part of Letters Patent No. 306,466, dated October14:, 1884.

Application filed October 25, 1883. (No model.)

To @ZZ whom it may concern,.-

Be it known that Il, ROBERT A. CARTER, a citizen of the United States,residing at Pittsburg, county of Allegheny, State of Pennsylvania, haveinvented or discovered anew and useful Improvement in Flanging-Machines;and I do hereby declare the following to be a full., clear, concise, andexact description thereof', reference being had to the accompa' nyingdrawings, making a part ot' this specification, in whichmlike lettersindicating like parts- Figure l is a plan view of my improveddangingmachine. Fig. 2 is a side elevation of the same. Fig. 3 is adetail view, certain parts being shown in section. Fig. et is aseotionalview of the table on the line r x, Fig. l; and Fig. 5 is a detailshowing the centering device pivoted to the table.

My invention relates to machines for i'langing the heads of boilers andother like articles; and it eonsists,in general terms,in theconstruction and combination of parts, all as more fully hereinafterdescribed and claimed.

A, A are suitable standards mounted on a bed or foundation, B.

In suitable slots in the standard A are mounted the journal-boXes oft-he shafts C l) of the danging-rolls c d. On these shafts C D aresecured the gear-wheels c j", which mesh with each other, and on thelower shaft, D, is secured the gear-wheel E, which is driven by a gear,F, mounted on a suitable power-shaft. The upper Hanging-roll issupported by a spring, (not shown,) interposed between the frontjournal-boxes of the shafts C D, and is forced down by the screw r/passing through a threaded aperture in the head ot' the standard A.

On the end oi the screw g is secured a pinion, it, which meshes with apinion, r, which is mounted on a pin secured to a erossbar connectingthe two standards A.

To the pinion k, near its periphery, is attaehed a handle, t, by whichsaid pinion is turned. By making the pinion It much larger than thepinion 7L, the workman is enabled to effect the adjustment of the upperroll with more ease and rapidity than if a handle were attached directlyto the screw y, as is usual.

lOn the first standard,A,are formed cars or lugs Z, which are bored outto receive the pivot-pins m. On these pivot-pins are mounted the arms nof the swinging table L, on which the plate to be ilanged is placed. Inthis table L is formed a longitudinal slot, the sides of which form wayso for the adjustable bearingblock O. The bearing-block is provided withflanges o, which rest on the ways o of the table L, and is held fromupward movement by the nut which extends across the slot on the underside oi' the table. This bearing-block is further provided with arecess, o', in which rests the head of the screw r', said screw passingthroughanut, r2, formed on the under side ot' the table L, and to theend ot this screw is attached a handle, r, by which the screw is rotatedfor the purpose of adjusting the beaiingblock. On the bearingblock reststhe plate p, which is provided with a central perforated boss, p, saidboss fitting into a hole in and extending below the bearing-block, andheld in place by a nut, p2.

To the rear ends of the arms n are attached bars or rodsn, on which areadj ustably mounted the weights w, which act as a counter-bal ance tothe table or the table and plate being flanged. These weights, inaddition to counterbalancing the table, serves to steady its vibratorymovements.

I do not conline myself to the means shown for connecting the counterweights to the swinging table, but consider any equivalent mechanicalmeans known in the art as within the scope oi" my invention.

To turn the table up and down, I attach to one ot' the arms a in linewith the pivots m a gear-wheel, T, which meshes with a gear, t, securedto a shaft mounted in bearings in a standard, A. On the outer end ofthis shaft is secured a bami-wheel, t, by which the shaft and gears tand T are rotated and the table swung either up or down. If operating onsmall light plates, I may dispense with handwheel and gear tand t andsubstitute a handwheel for the gear T.

I-Ieretofore in ilanging plates great trouble and delay have been causedby the diiiieulty encountered in centering the hot plates to be flanged,over the bcaringblock.

To obviate ICC) this difficulty I attach a plate-centering devicey tothe frame of my machine. This centering device consists of a longslotted bar, s, which is pivoted by its arms s s to suitable lugs on thefront of the machine. Vithin the .slot in this arm is mounted theadjustable cenbar s is turned up and the heated blank is placed on thetable. Then the bar s is turned down, the point of the centering-pinresting on the blank. The blank is then moved until thecentering-pin'enters the hole in the center of the blank, the bar s isagain turned up, and a locking-bar is inserted through the blank and thehole in the bearingplate and its boss. Power is then applied to theshaft F, thereby rotating the Hanging-rolls. The workman then turns thehand-wheel t, thereby rotating the table L on its pivots. As the weightof the table and blank is counterbalaneed by the weights w, no morepower need be applied to the Wheel t than is necessary to bend theblank.

In place of hinging the centering device to the frame of the machine, Imay hinge it vto the front end of the swinging table L, as shown in Fig.5.

Vhcn the centering device is hinged to the front end of the table, I mayso forni the centering-pin fv that it will serve as a lockingbar tosecure the blank to the swinging table.

In the face of the table I mount a series of frictionrollers, u, whichsupport the blank while being rotated during the fianging operation.

I claim herein as my invention- 1. In a Hanging-machine, the combinationof a table and a pivoted centering device, substantially as set forth.

2. In a flanging-machine, the combination of a table, an adjustablebearing-block, and a pivoted centering device, substantially as setforth. 4

3. In a Hanging-machine, the combination of a table, the pivoted andslotted arm s, and the adjustable pin c, substantially as set forth.

4. In a Hanging-machine, the combination of the swinging table, the barsn', secured to said table, and the adjustable weights, substantially asset forth.

5. In a langingmaehine, the combination j of the table pivoted to theframe of the machine, the wheel T, secured to said table with its centerin line with the center of the pivoting motion of the table, and gearmechan- 6y ism for rotating said wheel independent of the mechanism forrevolving the Hanging-rolls, substantially as set forth.

In testimony whereof I have hereunto set my hand.

ROBERT A. CARTER. W'itnesses:

DARWIN S. WoLco'r'r, It. H. VHITTLSEY.

